Energy storage unit



FIG. 1 is a front, left-side perspective view showing our new ornamentaldesign.

FIG. 2 is a front view thereof;

FIG. 3 is a left-side view thereof;

FIG. 4 is a right-side view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in the drawings illustrate boundaries and/orenvironmental structures of the energy storage unit that form no part ofthe claimed design.

CLAIM The ornamental design for a energy storage unit, as shown anddescribed.